Riot server crash

I was just spectating a friend's game, and the ENTIRE client and server crashed. Everyone except one player disconnected, then the game crashed completely. When the game crashed, he got a leaver and lost IP and was demoted. How is that even fair to him or the other players that disconnected all at the same time? He tried reconnecting but it happened to him and everyone else except one player every single time. Figure this out rito, atleast give them loss prevention.